Fastener-inserting means.



W. G. STEWART.

PASTBNBR INSERTING MEANS.

APPLICATION FILED JUNE 2B, 1914. 1 1 1 8,968. Patend Dee. 1, 1914A 3SHEBTS*SHEET1.

n VIIIIlIl/,IA

MTA/555551 ZZQW M w. o. STEWART. FASTENER INSERTING MEANS. APPLICATIONFILED JUNEZB, 1914.. 1, 1 1 3,958, Patented Dec. 1, 1914.

3 SHEETS-SHEET 2.

@240Go L 76 M//T/VESSES ingu. 8./(2 *f W. C.- STEWART.

FASTENEB INSERTING MEANS. APPLIoATIox HLED .mm1 2s, 1914.

1,118,968. Patented Dec. 1,1914.

3 SHEETS-SHEET 3.

'HE NURRIS PETERS C0. FHOU-LIITHO.. WASHINGYON, D. C.

Original appliatipn filed Noyeinber 14 190,6, seriai no ,aliaesa p pDivided and this application lefl Julie 26, 1914. Seria1,No. 847,518.

- (STATES m@E-r e WILLIAM :of s'rEWimfoEsWAMrscoTfr, MAssAoHusnrfrs,ASSIGNOR, :BY MEsNE AssIGNMENTs, Topnrrun snonfiviaoHINERY coM'PAN'Y,orfrarnasongnnw f JERSEY, Aconeoaa'rionorNEWJERsEY. l p

" 'EASTENERTINSERTING MEANS,

y", Be it known that LWTiLILrAr "STEWART,

vented 'an Improvementin Fastener-Inserting Means,-` of whichthefollovving description, in connection with the vaccompanying vdrawings, is a specification, likeletters, on i ,a subject ofKingGeorge'Yfof"Great -Brit-r ain, residing at b wampscottj,` county of `EsayseX,;and. State Jof `Massachiisetts, have Vinthe drawings representinglike parts.

relates to machinesforthe manufacture of bootsi and shoes, andmoreparticularly tof means for presentingand insertingfasteners or othermetallioipieces intoboot or shoe materials for securing `partstogetheror for i f other purposes.

`Where separate fasteners or like have 4heretofore been. ,furnishedfroma source 'of supply yin bulk to fastener inserting means,`itrhasbeen the usual practice toprovide a magazine'or other holderfor., a quantityfof` suchfasteners and direct the findividuallfastenerstherefrom. through'fa conduit or by inserting` position, :whereupon theinserting f fastener separatingf-means or botlnttofthe por drivingmechanismWouldact upon the positioned fastener orthelike and drive it linto the boot or shoegmateriali These `eX- l pedients have beenlsatisfactory `to a large" extent, but conditions frequently arise whichl tener vis furnished'at thesource of supply v `purposes of lthe presentyinvention isl tol prodriveninto the shoe `material by. thelfastenerinserting mechanism.

nished byl a fastener-'insertingMor driving pose of the invention, a`fastener'presenting Specification offLettei'slPatent.

In carrying `the invention into practical' eifect,a good `embodimentthereof is fur- *'45 means which shall positively engage a`fas- :V i

ktener at the source of supply, carry itfromf` fastel'ler lISBltllg 1dlvlng means, sh0W this point tothe c lriving-lposition, and then @drivethe fastener; and as a furtherpurmechanism is provided to present'fasteners toehbe taken byv the; inserting or` driving j lmeans,- allasYWill more fully "appear from` the following descriptionand accompanyingYdrawings of one' practicalembodiment ofthe e invention, itj beingunderstood thatjthe invention is `not restricted thereto'but in itstruefs'c'ope is `defined by the claims.` Inthe i Patented Dec." 1e,1914. Renewed Maya, isis, serial N. 7e5,3a5."`Y

following explotationof the'present invern, i

tion`,`it is s lhoivn"and` described asassociated With means for pullingthe upper `materials y over a lasttdproperly 'conform the upper Theinventionto be hereinafterl described to the contour of "the last andlay the edge some salient and important features of the 'finventiomitisto be understood vthat such e i Iassociation is only for theexploitation of I lthereof in position for` securing it in pulledoverposition, all substantially as fully dis?" lclosed in the priorapplication, SerialNo. 765,395, May, 1913, filed asa renewal of`applicationv Serial No. 343,458,`November 14, V 1906, of Whiclithepresent application kis a division; and Whilethisfserves tomake clear"the invention, and thatit is not restricted i vtfofthifsf association"or use,and `may be a d' vantageously employed in other relationswherefasteners or the like are to be inserted or driven into l'thematerials of b oots and shoes;` `gy W hile, in the presentdescripti-omthe term fastener is employed to designate the article' orthing to 'bedrivenor inserted into the shoefmaterial, it is to be `understoed that make it desirable thatfromithe Vtime a"fasv intended toinclude any character 'of device that maybe inserted 'either intoVort'oLsecure shoe parts together, such as tacks,- nails,` staples, slugsand the like. videmeans which shall talreV positivegcom trol of a`falsteneratfthe source of supplyand maintain saidcontrol as thefastener" `is. moved to driving position and is finally in the drawingsFigu1-e i is a side eieyationfsliovving the fastener presenting ingItheparts in a different position andthe driving means aboutto take afastener from the presenting meansiflig, 3 is a detached detail, showingoneformA of means for releasing' the @sich faim. thelhwmeri@ Per means,and Athe fastener driving or insert-" ing means as having *taken a'fastenerftherefrom, carried 1t to driving position, and

mitj theilatter' tol" act. Fig. ,tfisian elevation at onev side of thefastener supplying andk presentingvmechanism; Fig. 5 is` a like vieW atthe opposite 'side`thereof;` Fig. 6 is a side elevation looking from theleft toward the right, Fig. 4; Fig. 7 is a transverse section on theline 7-7, Fig. 4; Fig. Sis aplan view yof the parts shown by Fig. 4;Fig. 9 isa `horizontal section on the line 9 9, Fig. 4,; Fig. l0 is adetached perspective View of the `presenter block;-Fig. 11 Vis a"detail-vertical section of the presenter means and fastener inserting ordriving means, showing the position of partswhen" the driver "has just-engaged afastener;Fig."12 is a' view similar to that offFig, `l1,shoWingthefas-- tener driver as having vtaken a fastener from thepresenting `mechanism and moved'itto Ward driving position; .andFig 13"`is a -similar view shoiving'the relation of the fastenerpresenting'mechanism and driver as the latterf is approaehing/andjustprior William C. Stewart, "No.`765',395, of Which this isdivision, .a fastener presenting and takes 'from the former afastenerbypo'si-A tively engaging'the same, carries y1t from 'to reaching'itspositi'tn to engage `a fas tener.

As setl forth in theiprior application of fastener inserting or drivingmeans is associated with each of the side and toe pulling-over means,but such differently associated fastener presenting and driving meansare substantially'the same; therefore, and

Y for the purpose of making clear the characteristics 'of the presentinvention,` the 'fastener presenting and driving means associated'vvitlione of the toe vpulling-over means yhas l,been selected for illustrationand description herein. Only such portions of the pulling-over means'have' been included. as are necessary for aproperl description of "the,presentinvention, because suchpulling `over means forms no essentialpart thereof and is only embraced herein for lshowing one ofthe usesto'which the. invention may be advantageously applied. Referring to rFigs. l` and 2,' the fastener presenting mechanism as a Whole designatedby P, the fastener inserting or driving mechanism by D, and from theassociation of the twoit will be notedthat the'latter the presentingmechanism as in into position forfdrivin'g, and thenby suitablematerial.

actuating means/the fastener inserting or *driving mechanism While:still positively holding the fastener drives it into the'shoe Intheapplication of the invention as illustrated, the fastener is takenfromthe source of'isupply and invertedvas it reaches driving position and isdriven up- Wardly by the driver, and While this is illustrative of an`impor-tant adaptation `of the present invention when 'associated withpi'illing-over means WhereV the shoe or last isfsupportedssoledovvnvvar'd, litpzis toibe understood,of course, tliatfthe broadfeatures .y

of the invention are not restricted thereto butV are readily adaptablefor the vdriving of fasteners Whenever a positive lcontrol of theindividual Ufastener is "desirable or Where the .'sourcehfof-fastenersupply is some dis- .tance from the driving point. v lt is desirable.preliminarily'fto briefly refer to the lpulling-over means with Whichthe 'present invention' isfhereinshoivn .associated.

Mounted on-asuitable 'supporting frame is thegrooved guidei inwhich .ismounted for `movement longitudinally vof said groove,

the,grippersupport 90 having a base portion 90X. Rising from the-grippersupport 90is the vertically-` arranged gripper rcarriage i guide "92Vcurved `in thearc'of circle, thec-enter ofA :which is preferably atl orapproximately. at

ing movement in ft-he guidel 92 is .the carriage i r76 which may-beactuatedl as setfo'rth'in said priorappiication to closeand. open.I theg aws, butas this mechanism forms no essential part'oflk the presentinvention, `descrip-Y tion -and illustration thereof are unnecessary,andreference ymay be had lto said prior application for such 'furtherexplanation of 'the' `construction andfoperation as is desired.

`After the gripper j aWs have graspedthe 'upf l per1inaterial and' ytheupperV and last"v have V been properly positioned Arelatively. as statedlin saidearlier application, lthe gripper car- 94, Fig. lf 2, v'carryingthe pvoted gripper jaws .61 and` '63 having slotted7 tail pore ytions'in `which operates' a pin 74 for opening )and closing the jajvvs.A Thepin` 741 is'carriecly byl a 'link 72 pivotally'connectedl to. al lever 5vdownward to place'tlieupper beneaththe insole, as4 'indicated' inl-Fig.l,fsaid toe grip- `per carriages are vrelatively moved laterally in adirection of separationfas by means of arms 256engaging pins 2541secured to the base portions 90x of the grippersupports.

Since atthe endofsucli lateral separating lmovement of the toe grippersupports, the

upper is in `position to be secured to the insole, advantage is taken ofsuch movethe ,j fastener driving element inoperative, and lfree. thedriving element .tofthe'per- 'formance of its driving .functionf-allfasvment to trip a catch, Which normally holdsA '85.'tlie-edge'-"ofqthe"iast 'about Which the upper *materials are to `behlaid.v .Mounted for slidfullyset forth in said earlier yapplication'.The stretched upper having been `brought in position to be secured, itis desirableto provide means .for inserting the fasteners of somekind,through the upper and-into the insole to hold the former in positionwhen the shoe is removed from the machine. Re-

` ferring in the first place to the actuating means for the fastenerdriver, and having reference to Figs. 1 and 2, each of the grippersupports 90 has pivoted thereto a ham` mer lever 274, the upper surfaceof which is `preferably curved concentrically with` the vertical guidesof the gripper supports. This hammer` lever may be actuated in anysuitable manner to cause the drivers to insert or drive the fastenerthrough the upper into theinsole, but as shown `they are actuated bysuitable springs. In the particular construction illustrated, the hammerlever bears upon a conical block 276`provided with a'pin ,27 7fitting-within one end of a coil spring 278, the other end of whichbears upon the collar of a sleeve 280 having a socketed bearing upon ascrew 282 threaded into a lug 284C upon the gripper support. The tensionof the spring 27 8 may thus be regulated bythe screw 282. The spring 278 normally keeps the hammer 274 elevated, turning the same about itspivot. The hammer is thus maintained in the elevatedposition with thespring 278 under compression, by means of a spring-pressed latch 286carried by the gripper support and adapted to move into bearingengagement with `the hammer surface 275. The spring 278 is appropriatelycompressed by suitable mechanism, as by 4devices on the actuating rodk178 and the lever 290, Fig. 1. Theparticu` lar construction in theillustrated formof the invention comprises a boss 294 on one side of theactuating rod 178 adaptedto engage a spring-pressed pawl 292X on thelever 290. On the down-stroke of the actuating rod 178, this pawl yieldsand allows the boss 294` to pass, but on the up-stroke of the actuatingrod 178, the pawl is held from movement relative to the lever 290 byengaging a portion thereof, and the levers therefore move in a directionto compress the hammer spring 27 8. The outward movement of theactuating rod 17 8 withdraws the boss from beneath the pawl at the timethe latch 286 engages the hammer surface 275 to hold the hammer inretracted position.

1n the preferred form of fastener inserting mechanism, when associatedwith the pulling-over means as herein illustrated, the

Vcarriage 94 in addition to carrying the grippers, has mounted upon it adriver bar 300, preferably carried .rwithasleeve 302 pivoted upon thecarriage 94. This driver bar 300 is provided at its outer end with ahead or button 304, Fig. 2, and carries between said button andthesleeve 302, a spring 306 ofV some strength,but weaker than the spring278, for normally keeping the driver bar retracted and the driverhcad308 in engagement with the inner end of the sleeve 302.

. With the last supported in the machine bottom down, the fasteners mustbe driven into the insole upwardly, and therefore it is desirable to usemeans other than gravity for obtaining a fastener from a source ofsupply and placing it in `position to be driven by actuationV of thedriver 300, through the hammer 274. Frequently, also, on account of thelocation of lor form of discharge from the source of fastener supply,the fasteners need to be partially or wholly inverted individuallywhilebeing conveyed to driving position. The driver is thereforeprovided with means for positively engaging the fasteneratthe source ofsupply, so that such "fastener may be carried by the ing position. Thedriver thus forms, in effect, means for conveying a fastener into properposition for insertion or driving, and for holding the fastener in suchposition until inserted or driven. Various means may suggest themselvesfor thus positively engaging a driver at the point of supply and forholding it as above-described; but in the present form ofthis featureofthe invention, there is mounted upon the driver head 308, a small,two-armed lever 312, having one of its arms bearing upon a spring 314resting in a suitable socket on the top of the driver head 308, itsother end forming a spring-pressed catch, which in the absence of afastener between such catch and the head, will normallv bear upon theend of the driver head. This catch is adapted to engage the undersurface of the head of the fastener and hold said head firmly againstthehead of the driver with the fastener preferably extending in alinementwith lthe driver.

Inthe present instance, it is preferable to use multi-pointed fasteners,such, for instance, as staples, for the reason that such fastenersprovide in one piece, a plurality of `holding parts to secure the upperproperly driver herein described may be readily adapted to carry variouskinds of fasteners.

Inasmuch, however, as staples have some v advantages under theconditions abovesta'ted, the present invention will be described as usedin connection therewith.

In using staples as the type of fastener desired, the driver head 308 isprovided with a transverse shoulder 315, Fig. 13, against which the headof the staple rests when met vby the catch 312 in position against theper jaw 61. The pin 316 is so positioned lthat when the grippercarriagereaches the 4.upper end of its stroke, the driver will have'beenv forced away from the jaw 61 and brought to a position to receivea fastener from the source of supplv, see Fig. 2. This is the positionit occupies during the `time that the vgrippers are being closed uponthe upper material preparatory to being moved downward in their curvedguides. The gripper support. 92 carries a spring-pressed .plunger 320against which the springpressed arm of the catch engages'when thecarriage is at the top of its stroke, thus keeping the catch open forthe reception of a fastener.

It is appropriate at this time to describe the means for supplyingfasteners, which in the present instance are staples, to be engaged andtaken by the driver, such means beingk best shown by Figs. 4 to 9inclusive. The gripper support has secured thereto, a verticallyarranged casing 322. This casing is designed to sustain the supply ofstaples for the driver and also the means for selecting them one at atime and presenting such selected staple to the catch upon the driverhead. Within the casing 322 and supported thereby, is alongitudinally-movable sleeve 324, Fig. 7, held inv any particularposition to which it is moved by any suitable means,

such as the friction pad 326, Fig. 7, sustained by the casing and heldin position b" .the screw 32S. The sleeve 324 is provided with a lowerbox-like end 330 forming a horizontally-arranged guideway for the block332, Fig. 7, which closes the lower end of the sleeve. This block isconstructed and arranged to receive fasteners rfrom a vsource of supplyand present them to the driver in position to be engaged by the catch312 and for convenience will hereinv'after be termed a presenter, orpresenter block.

supplying staples to the presenter block 332, but in the Ipresent formof the invention such means is shown as an openended container 334,Figs. 4 and 7, in which a 4number, of staples are placed, one upon theother, so that the entire columnso formed will rest upon the presenteryblock under the force of gravity. The presenter block is so con`structed that upon each forward movement with its guideway it will carrythe lowermost staple of the column into position to be engaged and heldby the driver head and thereafter carried by it' into driving position,the block being then returned again beneath the column of staples whichhave settled down so that they again rest upon its surface. Preferablythese containers 334 are portable members, and therefore means should beprovided for holding the staples therein while they arecarried to themachine and placed withinthe sleeve 324. To this end eac-h container ispreferably provided with afcentral longitudinal abutment 336, Figs. `7and 8, extending from one side but fleaving suiiicient space between itand the other sides for the reception of the staples. The container thusforms, in effect, a chute for the staples. `The abutment 336. isprovided with a cent-ral vaperture 338 through which extends a .lockingrod 340 provided at its lower end with a pair of curved spring lingers342 which bear against the sides'ofthe container and extend beneath thecolumn of staples, preventing them from passing out of the Aopen bottom.The locking'rod 340 is provided with a thumbpiece 344, Aso that afterthe container is placed within the sleeve 324, the rod may be e `drawnupwardly, wherebythe spring fingers 342 are drawn inwardlyV fromwithout, the lingers, by their curved surfaces, riding past thefricti'onrollers or pins-346v carried in the lower end of the abutment 336, theconstruc-V y tion being such that the staples may then be allowed todrop until they rest upon the upper surface lof the presenter block 332in position to be selected one by one for insertion. The locking rod 340ismaintained in retracted'position by the pin 'andslot connection 348between it'and the abutment 336, as indicated in Fig. 7. p The presenterblock 332 is shown` most clearly in Fig. 10 and is `provided with Varecessed surface forming a cutaway portion 350 extending along eitherside of the top and across the front end, withinwhich the lower-moststaple of the column in the container 334 rests, the construction beingsuch that the block may be moved forwardly in its guide 330 carrying thelowermost staple with it until the `staple head projects beyond the wallof the casing 322. The presenter 332 is also provided with grooves 352,Fig. 10, in its front end or face extending backward for almost thelength of the Shanks' or l una@ legs lof, the staples,\and a centralverticallyarranged groove 354, Fig. 10,` just backof;

the` head andfstaple when it rests in the cutaway` portion 350. .The`Sleeve 324'is provided with a pin 3 56, Figs4 and 7, extending througha slot`358 in the casing 322, andv on this pinis pivoted a .lever 360`having a short arm 362, Fig'. 4, provided with a pin,

364`wliich projects into a bearing 366 on the `casing 322, and a longerarm 368 embracing a pin `372 upon the presenterblock 332, and extendingthrough a slot 374, Fig. 4, in one side of the guide 330. v

From the construction described, it will be seen that if the sleeve 324be given a movel ment in one direction the arm 368 of the lever 360 willbe given a motion about the pivot pin 364 asa center, whereby thepresenter block 332 will be moved in one direction, and conversely, vamovement of the sleevey 324 in the other direction will, through thesame connections, move the pre- Senter block in the opposite direction.

-Asherein shown, the connections are soarranged and disposed that adownward movement of the sleeve 324 will retract thepresenter blockwithin its guideway 330,

while when the sleeve is moved upwardly,

the presenter block is forced outwardly so that it projects vbeyond theend of the guideway330 with itsend beneath the fastener engaging meanson `the headiof `the driver andfin suchl position thatthe` head or crossbar Iof, the` staplecarriedby the presenter blockis in position to `beengaged by the on `the end or head of the driver; but as` herein shownas the present embodimentfof the invention, said means comprises aforked `with it and no downward movement is im-Y arm `376 mounted tohave movement with the grippercarriage 94 and preferably upon thecarriage itself; The upper arm 375 of this fork is somewhat shorter`than the lower arm 377. Vhenthe gripper carriage is at the upper endVof its stroke, Vthe lower arm 377 is in engagement with a pin 378projecting from a convenient partof the sleeve 324 and of less diameterthan the' space between the arms 375 and 377. As the gripper carriagestarts to move down in its curved guideway, it carrieslthe driver 300parted to the sleeve 324 and-the arm 375 engages the pin 378. Duringthis lost motion). the driver has been carried down sufficiently l@bring the he@ e? #he Steele. rating .upon

the nowk forwardly-extending presenter block, the catch 312 passing intothe vertical slot 354 in the presenter block. The catch 312 onthe-driver is maintained open so that the staple` may be entered behinduit, by

means of the spring-pressed plunger 320,

which, through its spring, follows the driver in its descent andprevents further downward movement of the plunger, at which time,however, the staple has been placed against the shoulder 315 and is inproper position to be positively engaged by the catch- 312 to hold itupon the driver head, Fig. 11.

At this time, the head of the driver is beingV forced downwardlyby ytheactionof the spring 318 -upon the sleeve302, such movement tending to`bring the vdriver head against the upper surface of the gripper jaw 61.At this time also, the arm 375begins to bear uponthe pin 378 and carriesthe sleeve 324 downwardly with it, which motion of the sleeve acts toretract the presenter block 332V in. its guideway 330 as heretofore eX-plained, see Fig-12. Owing to the curved line in. which the grippercarriage descends, the forked arm 376 tends to slide over` the pin v378,`the arm, however, being made long enough to engage the` pin for asufficient.'

length-of time to move the presenter block 332 -in proper positionbeneath. the column of staples` and forgreceiving upon its cutawayportion 350, the staple nowat the bot-l` tom of the column;` `As thepresenter block is retracted, the driver 300 carrying a staple,

continues to move down with the carriage 94,

the legs of the staple passingdown 'throughk the side slots 352 in thepresenter block, as the `latter is being retracted. The spring 318having brought the driver head against the upperside of the gripper jaw61, the driver and gripper both travel together in this relation downthe curved guide in the gripper support, and in their descent. thebutton 304 on the end ofthe drivenenga ges the surface 275 of the hammer274, the spring 306 yielding,` if necessary, during this engagement,andl continuing to yield until the upper has been'placed in the positionfor inserting the fasteners or staples still VVcarried positivelyby thehead of the driver; Then the upper has reached this position. owing tothe gripper-movement as pointed out in said prior application. the latch286 which holds the hammer 275 in retracted position, is tripped and thehammer is allowed to move forward under the action of the spring 278 toimpart a driving` blow to thedriver 300 and insert the staple orfastener through the upper and intothe insole. j y j Any suitable meansmay ble employed for tripping vthe catch 286 in order to free thehammer-,as above indicated, but inthe particular form 'of `this featureof the invention,

a` pin 272, which acts against the: free end of a pivotcd tail piece285x as the carriagesupport is moved' laterally in itsguideway 12,y saidcatch being held inhammer engaging position by meansof a spring a, Fig.3;

As the fasteners or staples used in secur` ing the upper to the insoleare frequentlyl withdrawn when the shoe is lasted, it is preferable toinsert the fasteners-only part way, and tof-thisend alug 291 is mountedonI the gripper support adjacent the lever 290i so that upwardmovementof the llever and t-hel connected hammer 274 is limited that the blowfrom the hammerwilleffect,

only a partial drive. This result is also fur-` ther insured by lreasonof the constructionv of the driver head. As thefastenerholdingcatch -312rises between the head ofthe fastenerand the upper-'materiah thefasteneris absolutely preventedi from being driven beyond a point where thiscatch` engages; the,

upper.

v After the fasteners have beenA inserted through the upper and intot'hejinsol'e,A the carriage vcarrying the grippers, drivers and relatedmechanism, must be moved 'back tothe upper end of the .curved V guidewayin position to enable the drivers to seize another fastenerlfor thesucceeding--operatiom land this is preferablf)7 done automatically-bythe same ymeanswhich 'brings the gripper carriage down and carries thedrivers into drilving position. Likewise, itis necessary to reset thehammer in order that it may bev in operative condition to againperformthe driving l.function when the next fastener is carried by lthe driver'into driving position.

Thel gripper carriage'being at theV bottom ofl its stroke, the pin 184is. inthe upper en d of the slot .formedin the actuator'178, asindicated in Fig; 1, and before anyl up'- stroke willhbe imparted to thegripper carriage, thereA will be loose play between theactuator 1,78and? pin' 184v until thelower end' of the slot engageszsaid pin. `Duringthis preliminary. rising movement of the actuator 178', the, boss294`cairied thereby, engages the vpawl 292 4 on the setting lever 290,thereby turning saidlever in a direction tol compress the spring 278until the surface 275 at the lower end ofthe hammer passes into.engagement with the catch 286, at which time the boss 294, by its inwardmovement,

passes from engagement with thepawl 292c on the continuedupwardxmovement of the actuator 178. The resetting movement.y of

the hammer as above described, allows theY spring 806 associated withthe vdriver 30D to expand, and the nose of the catch being in engagement.with they now driven staple,

causes the catch toppen. Further expansion Y ofthe springBO withdrawsthe driver from.` engagement vviththe drivenstaple and ,cari fries'thedriver-awar from the 5h96. threiishf the sleeve 302. 'Further upwardmove'ineiit of the actuator 178"` moves the carriage '94t upward in itsguideway to return the gripper'jaws and driver to initial position atthe upper portion of the guide 92, substantially as indicated in Fig.2j. AstheV driver approaches` its upper position, thelower arm 37 7 ofthe fork 376 carried by the carriagaengages the pin B78v on thesleeveythe lever of the block 332, sov thation the next downwardmovement said staple may be in position to be engaged by the driver inthe mannerasheretolfore explained. It willbe understood that on upwardmovement of:

the-driver 300, the pin 316 willbe engaged by the sleeve 302 of thedriver before the gripper carriage reaches itsupper position, and thedriver sleeve will therefore be turned' about its pivot vagainst lthetension of the .spring 318 until whenl the gripper carriage reaches itsupper position of rest,

the, driver y.has been raised" into substantially, the plane above thepresenter block, as is desired. At;` thisv time, also, the springpressedarm of the7 catch 312+has-engaged the plunger 320, compressing itsspring andy forcing it upwardly* somewhat, 'but `also compressing, thespring 314 @of the 4catchy and thus maintaining the vCatch in openposition ready toellgfdgebetween itself and the driver head, afreshstaple to be fcarried to the driving point'andA4 driven,

Claims:

1. In a machine for driving fasteners, thecoinbinationhof a source' offfastenerfsupply,

a driver constructed and arranged to grasp`- a fastener at the-source ofsupply and-carryit to-drivingv position, and means foi-raptuwhilgestillf held bythe driver. v

iio atingthe driver to partially drive-a'fastener i 2'.r In a machine'for 'driving staples, into I boots and shoes, the conibinationofa-souree of supply, a'driver,v meansl carriedt'by the driver for"engaging the crown ofthestaple' at the source` of supply aflldvCarrying it to driving position, and lmeans for` actuating the driverfor partially drivingfthe lstaple4 whilestill held by said first-namedmeans.

3. In a machine for partially drivingr fase;

teners intoa boot o r shoe,"th`e combination 1 ofa source of supply, adriveiga relatively movable catch carried by the driver and con'-structed and arranged to engagethe head of a fastenerl at the sourceofsupply and carry the fastenerv to driving position, and meansforactuating the'driver to partially drive,`

the fastener while still" held by the catch. l

eflnra boot aridshoef treating machine,4 al 5150- moving the driver fromthe position where it received the fastener or' the like to drivingposition, means for giving the driver `its driving movement to partiallyinsert the fastener or the like held by it, and means to thereafterretract the driver and disengage the fastener after it is partiallydriven.

5. In a machine for inserting fasteners into boots and shoes, thecombination of a source ofy fastener supply, fastener inserting meansmovable from the source of supply to driving position, and meansconstructed and arranged with respect to the fastener inserting means tograsp a fastener at the source of supply and carry it to drivingposition and be tripped from engage;

ment with the fastener by retractive movement of the drivel' after thefastener has been driven.

6. In a machine for `inserting fasteners into boots and shoes, thecombination of a source of supply, a driver, a catchppivotally mountedat one side of the center of the driver and constructed and arranged toengage a fastener at thesource of supply and carry it to drivingposition, means for giving the driver its driving stroke, and

means for retracting the driver and thereby tripping the catch fromengagement'with the fastener after it vhas been driven.

7. In a machine forinserting fasteners or the like into boots and shoes,a driver' provided with a catch to engage a'H-fastener, meansA forpresenting a fastener to said driver, and means for maintaining saidcatch open until the `fastener is in position to be engaged, and forthereafter automaticallyreleasing the catch.V

8. In a machine for inserting fasteners or the like into boots andshoes, a driver proL vided with a normally closed catch to engage afastener, means for presenting a fastener thereto, and aplungerconstructed and arranged to engage the catch and maintain it open untilthe fastener is in position to be engaged.

9. In a machine for insertingl fasteners or the like into boots andshoes, a driver provided witli a normally closed catch to en-` gage afastener, a fastener presenter, means for moving said driver past thepresenter to Vengage the fastener, a spring pressed plunl boots andshoes, the' combination of a source of supply, a driver having a movablecatch to clamp the cross-bar of the staple between it and the head ofthe driver and hold the staple until the driving operation has beencompleted, and means to thereafter retract the driver and thereby freethe catch from the staple.

ll. In a machine for driving staples part- 1 way into boots and shoes inan inclined di rection, the `combination of a source of supply, a driverconstructed and arranged to grasp a staple at the source of supply andcarry it'to driving position, means for moving the driver` from thesource of supply into a position inclined to the surface of the boot orshoe into which the staple is to be driven, and means for actuating thedriver to complete the driving of the staple part-way into the boot orshoe in an inclined direction while still grasped by the driver.

l2. In a machine for inserting fasteners in boots and slices, a fastenerpresenter, actuating means for moving the presenter in two directions atan angle to each other, a driver constructed and arranged to grasp afastener at the presenting means and carry it to driving position, andmeans to thereafter actuate the driver to partiallydrive the fastenerwhile still in the grasp ofthe driver.

13. In a machine for driving fasteners into boots and shoes, a fastenerpresenter mounted for movement in two directions,

actuating means for moving the same in one direction, connectionsbetween said means and presenter so arranged that the presenter is movedin another direction, and a driver for taking a fastener from thepresenter and carrying it to driving position.

14C. In a machine for inserting fasteners in boots and shoes, a fastenerpresenter mounted for movement in two directions, actuating means formoving the same in one direction, and connections between said means andpresenter so arranged that the presenter is moved in another direction.

l5. In a machine for inserting fasteners in boots and shoes, astaplepresenter comprising a block having a recessed surface to receive astaple and provided with backwardly-extending grooves to afford passagefor the legs of the staples, and a centrally arranged groove atf thefront thereof to receive the head of the staple.

1G. In a machine for inserting staples, the combination of a source ofstaple supply for presenting staples singly, staple inserting meanshaving provisions for grasping a staple at the source of supply andcarrying `it to driving position, and means carried by the stapleinserting means permitting the staple to be only partially driven.`

tween the legs thereof at the source of sup- In testimony whereof, Ihave signed my: ply and carry 1t to drivlng position, means naine tothis specification, 1n the presence of for lmpartlng the drlvlng stroketo the two subscribing Witnesse..

driver to partially drive the staple, and. WYLLIAM-C. STEYVVART. l5means t0 retract the driver after the staple l lvitnesses:

has been driven and thereby tilt the catch ERIC A. HOLMGREN,

to' release the staple. HAROLD E. KENYON.

Copies of this patent may be obtained for ve cents each, by addressing`the Cemmssoner olf` Patents,

Washington, D. C. n

